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[Xen-devel] disk offline with xen4.0+pvops2.6.31.13

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] disk offline with xen4.0+pvops2.6.31.13
From: yingbin wang <yingbin.wangyb@xxxxxxxxx>
Date: Mon, 26 Apr 2010 21:42:37 +0800
Delivery-date: Mon, 26 Apr 2010 06:43:43 -0700
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we have just upgraded to xen4.0+kernel2.6.31.13. however, we fonud
that disk offline in high disk IO(xen4.0+kernel2.6.31.13). but whitout
xen4.0, we only start with kernel2.6.31.13, the disk offline didn't
happen.
I think it is a bug.

test case:
57 physical machine
we start 5 vm(cpu:2, memory:1024) in a physical machine.at the same
time we do decompression in dom0.
tar xzvf *.tar.gz
tar czvf *.tar.gz *.img

xen4.0+kernel2.6.31.13:
result :  disk offline in nearly 50% physical machines(28/57).

kernel2.6.31.13:
result :  disk offline didn't happen(0/57)

our env :
compile env and filesystem :
      Redhat AS 5.4

kernel:
      pvops_2.6.31.13

hardware ( lspci ):
00:00.0 Host bridge: Intel Corporation 5500 I/O Hub to ESI Port (rev 22)
00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI
Express Root Port 1 (rev 22)
00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI
Express Root Port 3 (rev 22)
00:07.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI
Express Root Port 7 (rev 22)
00:09.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI
Express Root Port 9 (rev 22)
00:10.0 PIC: Intel Corporation 5520/5500/X58 Physical and Link Layer
Registers Port 0 (rev 22)
00:10.1 PIC: Intel Corporation 5520/5500/X58 Routing and Protocol
Layer Registers Port 0 (rev 22)
00:11.0 PIC: Intel Corporation 5520/5500 Physical and Link Layer
Registers Port 1 (rev 22)
00:11.1 PIC: Intel Corporation 5520/5500 Routing & Protocol Layer
Register Port 1 (rev 22)
00:13.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub I/OxAPIC
Interrupt Controller (rev 22)
00:14.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub System Management
Registers (rev 22)
00:14.1 PIC: Intel Corporation 5520/5500/X58 I/O Hub GPIO and Scratch
Pad Registers (rev 22)
00:14.2 PIC: Intel Corporation 5520/5500/X58 I/O Hub Control Status
and RAS Registers (rev 22)
00:14.3 PIC: Intel Corporation 5520/5500/X58 I/O Hub Throttle Registers (rev 22)
00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB
UHCI Controller #4
00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2
EHCI Controller #2
00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB
UHCI Controller #1
00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB
UHCI Controller #2
00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB
UHCI Controller #3
00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2
EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIB (ICH10) LPC Interface Controller
00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port
SATA IDE Controller
00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller
00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port
SATA IDE Controller
01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709
Gigabit Ethernet (rev 20)
01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709
Gigabit Ethernet (rev 20)
04:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068E
PCI-Express Fusion-MPT SAS (rev 08)
05:00.0 VGA compatible controller: XGI Technology Inc. (eXtreme
Graphics Innovation) Z9s/Z9m (XG21 core)

xm info :
host                   : r02k08010
release                : 2.6.31.13debug
version                : #26 SMP Mon Apr 26 16:34:22 CST 2010
machine                : x86_64
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 2266
hw_caps                :
bfebfbff:28100800:00000000:00001b40:009ce3bd:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 24544
free_memory            : 1668
node_to_cpu            : node0:0-7
node_to_memory         : node0:1668
node_to_dma32_mem      : node0:839
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        :
cc_compiler            : gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)
cc_compile_by          : root
cc_compile_domain      :
cc_compile_date        : Tue Apr 13 23:04:20 CST 2010
xend_config_format     : 4

BTW, the attachment is the dom0 kernel compile config.

Cheers,
wyb

Attachment: config-2.6.31.13.pvops
Description: Binary data

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